Lift trucks
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Lifting aerial work truck Lifting aerial work truck Description Lifting aerial work vehicle, a type of vehicle that is operated by a hydraulic or electric system that administers multiple hydraulic cylinders and can be lifted up and down to operate. Its main features are: in the operation bucket and rotary seat are equipped with operating devices, remote control of the engine start / stop, high speed / low speed, the use of electro-hydraulic proportional valve control arm movement, good stability, the working arm can be left , Right 360 ° continuous rotation, automatically maintain the working tank level by the linkage mechanism, the main pump failure can be used to control the emergency pump down operation slot, with night lighting, lifting heavy objects. Products are widely used in power, street lamps, municipal, gardens, communications, airports, construction (repair) ships, transportation, advertising, photography and other high-altitude operations. Divided by type: vertical lift (also known as scissor lift), folding arm lifts, self-propelled lifts, telescopic lifts. Among them, the vertical lifting type work bucket is of great importance, but its operation height is limited, its mobility is poor, and it is not flexible. At present, the domestic use of the folding boom lifter is widely used. According to the operating height is mainly divided into: 6 meters, 10 meters, 14 meters, 16 meters, 18 meters, 22 meters, 25 meters, 30 meters, 50 meters. At present the highest foreign up to 80 meters. Classification of aerial work lifts There are four series of lifts: folding arms, telescopic arms, hybrid arms, and self-propelled vehicles. The variety of lifts Dongfeng Xiao Bawang Elevator, Dongfeng Duolika Elevator, Dongfeng 145 Elevator, Jiangling Elevator, Qingling Elevator, Ao Ling Elevator. Lift color The colors of the lifts are mainly yellow in engineering. Whether it is day or night, yellow is more striking. Another offer a variety of options. Lift operating specifications. [1] Chapter I General The hydraulically-powered manned aerial vehicles are contemporary advanced species mechanical equipment. The construction workers use the aerial vehicles to lift off the work. As long as they are used correctly, safety is guaranteed. However, it is not a proper operation or security measures have not been implemented. It is also a very dangerous master air operation procedure. Chapter 2 Driving 1. Motorists must hold a bus driving license. 2, auxiliary transmission must be separated from the hydraulic pump. 3. Pay attention to the height of bridges and tunnels. 4, the speed is generally not more than 30 km / h, the suburb does not exceed 40 km / h. 5, the operation bucket (platform) declined to stay in the staff. Chapter III Operation 6. The selection of parking position shall be a solid ground, the inclination of the vehicle shall not exceed 3°, and the warning flash shall be turned on. 7. Working height and wind power (Baufort); Wind 6 or below suitable height 10 meters below the operation; Wind power level 5 can work below 11~20 meters; Wind 4 and below suitable height 21 to 30 meters below the operation. 8. Start the oil pump, step on the clutch of the car, pull on the handbrake, and the transmission is in neutral gear, and pull the hydraulic oil clutch clutch lever to make the hydraulic oil pump work. 9. After the hydraulic pump runs for 2 to 5 minutes, it can operate the handles of each movement. 10. The operation of lifts should be trained and hold personnel responsible for operational duty certificates. 11, the operator must concentrate on the prevention of misuse and strictly prohibit alcohol after the operation. 12, first put down the legs, if necessary, put the pad under the leg of the leg to ensure that the vehicle is in a horizontal state. 13. When operating the handle, it should be steady, and do not swift and swift in order to avoid the inertial swing of the working arm and the accident. 14. Operate strictly in accordance with the technical parameters and operating ranges specified by the equipment. 15. The staff on the operation bucket (platform) should wear a seat belt. 16. When raising and lowering the work bucket (platform), the upper and lower arms should be alternately operated to ensure that the bucket (platform) is in the best rising radius. It is forbidden to use the working arm for other purposes. 17. During operation, the operator should pay attention to the safety distance of the bucket (platform), arms and high and low voltage wires, telephone lines and buildings, big trees, billboards, lighting and other objects. 18. The on-duty driver is responsible for the ground and pay attention to the safety protection of the traffic. 19, the use of the operating height of 25 meters above the truck, in addition to setting up safety signs and guardrails, the ground guardian in addition to the driver, but also set up 1-2 people responsible for strengthening the guardianship. 20. During the operation process, if there is abnormal noise in the hydraulic system or sudden leakage of oil, the work should be stopped. Only after the inspection or repair can the work be continued. 21. When the hydraulic system fails and the working arm is unable to move, it should try to evacuate the work personnel on the work platform (platform) and notify the professional maintenance personnel to handle it. 22. After the operation is completed, the operation bucket (platform), the operation arm is reset, the support leg is retracted, and the hydraulic oil pump is disengaged, and the hand brake is released to start driving. Chapter IV Others 23. The operating bucket (platform) of the lift shall have reflective safety signs on the working arm and its legs. 24. The lifts shall be equipped with 2 triangular (tire) mats and 4 outriggers. 25. The vehicle should be equipped with a horizontal sign. 25. The most common aerial platforms currently on the market include: Dongfeng Aerial Work Trucks, Liberation Aerial Vehicles, Ao Ling Aerial Work Vehicles, Qingling Aerial Work Trucks, and JAC Aerial Work Trucks. Lift use: Mainly used in electricity, communications, street lamps, traffic police, highways, cable television, ship repair, construction, gardens, advertising, photography, large-scale enterprises and other industries. Lift Features: The elevator has the following technical features: (1) A new type of full hydraulic self-propelled chassis. Developed a self-propelled aerial work platform truck with completely independent intellectual property rights, using electromechanical-hydraulic integration, reliability design, and computer-aided design technologies, successfully developed a fully hydraulically driven, self-propelled special chassis that broke through. In the past, domestic high-altitude lifting platform trucks could only be limited by the design of the vehicle or crane chassis modifications. (2) Traveling with load and good job stability. The chassis structure breaks through traditional design theories and methods, and reduces the center of gravity offset by optimizing the overall layout and load distribution of the platform. Using a unique large-angle back-up hinge structure, a variety of counterweight modules are properly set to effectively balance the working torque. Adopting the H-type variable cross-section composite box girder frame and high-load solid rubber tires, the overall stiffness of the chassis is increased, the stability of the whole machine running and working process is ensured, and the function of the high-altitude operation platform vehicle to carry the load is realized. (3) Versatile, versatile work equipment. Through the boom front end bracket, a lifting device or a passenger platform can be quickly installed to realize functions such as material lifting, hoisting and hoisting, and manned aerial work, and at the same time, an interface is provided for rapid switching of the extension work device and various work devices. . (4) Unique three-dimensional rotating lifting device. The designed three-dimensional rotating lifting device can not only automatically maintain the attitude of the lifted material, but also can achieve the adjustment requirements of lifting material at any height, any position and any direction in the space. The speed control is precise and sensitive, and the micro-motion performance is good. Satisfy the requirements for the installation of aerial work and ventilation ducts in large caverns.
Lifting aerial work truck Lifting aerial work truck Description Lifting aerial work vehicle, a type of vehicle that is operated by a hydraulic or electric system that administers multiple hydraulic cylinders and can be lifted up and down to operate. Its main features are: in the operation bucket and rotary seat are equipped with operating devices, remote control of the engine start / stop, high speed / low speed, the use of electro-hydraulic proportional valve control arm movement, good stability, the working arm can be left , Right 360 ° continuous rotation, automatically maintain the working tank level by the linkage mechanism, the main pump failure can be used to control the emergency pump down operation slot, with night lighting, lifting heavy objects. Products are widely used in power, street lamps, municipal, gardens, communications, airports, construction (repair) ships, transportation, advertising, photography and other high-altitude operations. Divided by type: vertical lift (also known as scissor lift), folding arm lifts, self-propelled lifts, telescopic lifts. Among them, the vertical lifting type work bucket is of great importance, but its operation height is limited, its mobility is poor, and it is not flexible. At present, the domestic use of the folding boom lifter is widely used. According to the operating height is mainly divided into: 6 meters, 10 meters, 14 meters, 16 meters, 18 meters, 22 meters, 25 meters, 30 meters, 50 meters. At present the highest foreign up to 80 meters. Classification of aerial work lifts There are four series of lifts: folding arms, telescopic arms, hybrid arms, and self-propelled vehicles. The variety of lifts Dongfeng Xiao Bawang Elevator, Dongfeng Duolika Elevator, Dongfeng 145 Elevator, Jiangling Elevator, Qingling Elevator, Ao Ling Elevator. Lift color The colors of the lifts are mainly yellow in engineering. Whether it is day or night, yellow is more striking. Another offer a variety of options. Lift operating specifications. [1] Chapter I General The hydraulically-powered manned aerial vehicles are contemporary advanced species mechanical equipment. The construction workers use the aerial vehicles to lift off the work. As long as they are used correctly, safety is guaranteed. However, it is not a proper operation or security measures have not been implemented. It is also a very dangerous master air operation procedure. Chapter 2 Driving 1. Motorists must hold a bus driving license. 2, auxiliary transmission must be separated from the hydraulic pump. 3. Pay attention to the height of bridges and tunnels. 4, the speed is generally not more than 30 km / h, the suburb does not exceed 40 km / h. 5, the operation bucket (platform) declined to stay in the staff. Chapter III Operation 6. The selection of parking position shall be a solid ground, the inclination of the vehicle shall not exceed 3°, and the warning flash shall be turned on. 7. Working height and wind power (Baufort); Wind 6 or below suitable height 10 meters below the operation; Wind power level 5 can work below 11~20 meters; Wind 4 and below suitable height 21 to 30 meters below the operation. 8. Start the oil pump, step on the clutch of the car, pull on the handbrake, and the transmission is in neutral gear, and pull the hydraulic oil clutch clutch lever to make the hydraulic oil pump work. 9. After the hydraulic pump runs for 2 to 5 minutes, it can operate the handles of each movement. 10. The operation of lifts should be trained and hold personnel responsible for operational duty certificates. 11, the operator must concentrate on the prevention of misuse and strictly prohibit alcohol after the operation. 12, first put down the legs, if necessary, put the pad under the leg of the leg to ensure that the vehicle is in a horizontal state. 13. When operating the handle, it should be steady, and do not swift and swift in order to avoid the inertial swing of the working arm and the accident. 14. Operate strictly in accordance with the technical parameters and operating ranges specified by the equipment. 15. The staff on the operation bucket (platform) should wear a seat belt. 16. When raising and lowering the work bucket (platform), the upper and lower arms should be alternately operated to ensure that the bucket (platform) is in the best rising radius. It is forbidden to use the working arm for other purposes. 17. During operation, the operator should pay attention to the safety distance of the bucket (platform), arms and high and low voltage wires, telephone lines and buildings, big trees, billboards, lighting and other objects. 18. The on-duty driver is responsible for the ground and pay attention to the safety protection of the traffic. 19, the use of the operating height of 25 meters above the truck, in addition to setting up safety signs and guardrails, the ground guardian in addition to the driver, but also set up 1-2 people responsible for strengthening the guardianship. 20. During the operation process, if there is abnormal noise in the hydraulic system or sudden leakage of oil, the work should be stopped. Only after the inspection or repair can the work be continued. 21. When the hydraulic system fails and the working arm is unable to move, it should try to evacuate the work personnel on the work platform (platform) and notify the professional maintenance personnel to handle it. 22. After the operation is completed, the operation bucket (platform), the operation arm is reset, the support leg is retracted, and the hydraulic oil pump is disengaged, and the hand brake is released to start driving. Chapter IV Others 23. The operating bucket (platform) of the lift shall have reflective safety signs on the working arm and its legs. 24. The lifts shall be equipped with 2 triangular (tire) mats and 4 outriggers. 25. The vehicle should be equipped with a horizontal sign. 25. The most common aerial platforms currently on the market include: Dongfeng Aerial Work Trucks, Liberation Aerial Vehicles, Ao Ling Aerial Work Vehicles, Qingling Aerial Work Trucks, and JAC Aerial Work Trucks. Lift use: Mainly used in electricity, communications, street lamps, traffic police, highways, cable television, ship repair, construction, gardens, advertising, photography, large-scale enterprises and other industries. Lift Features: The elevator has the following technical features: (1) A new type of full hydraulic self-propelled chassis. Developed a self-propelled aerial work platform truck with completely independent intellectual property rights, using electromechanical-hydraulic integration, reliability design, and computer-aided design technologies, successfully developed a fully hydraulically driven, self-propelled special chassis that broke through. In the past, domestic high-altitude lifting platform trucks could only be limited by the design of the vehicle or crane chassis modifications. (2) Traveling with load and good job stability. The chassis structure breaks through traditional design theories and methods, and reduces the center of gravity offset by optimizing the overall layout and load distribution of the platform. Using a unique large-angle back-up hinge structure, a variety of counterweight modules are properly set to effectively balance the working torque. Adopting the H-type variable cross-section composite box girder frame and high-load solid rubber tires, the overall stiffness of the chassis is increased, the stability of the whole machine running and working process is ensured, and the function of the high-altitude operation platform vehicle to carry the load is realized. (3) Versatile, versatile work equipment. Through the boom front end bracket, a lifting device or a passenger platform can be quickly installed to realize functions such as material lifting, hoisting and hoisting, and manned aerial work, and at the same time, an interface is provided for rapid switching of the extension work device and various work devices. . (4) Unique three-dimensional rotating lifting device. The designed three-dimensional rotating lifting device can not only automatically maintain the attitude of the lifted material, but also can achieve the adjustment requirements of lifting material at any height, any position and any direction in the space. The speed control is precise and sensitive, and the micro-motion performance is good. Satisfy the requirements for the installation of aerial work and ventilation ducts in large caverns.
Tower cranes typically use a combination of fixed and movable pulleys to lift and lower heavy loads. The pulleys are usually attached to the jib or boom of the crane and are used to change the direction and increase the mechanical advantage of the lifting system.
Some common types of pulleys used in tower cranes include:
1. Fixed Pulleys: These are stationary pulleys that are mounted at a fixed point on the crane. They change the direction of the lifting force and help distribute the load evenly.
2. Movable Pulleys: These pulleys are attached to a movable block that can be raised or lowered along the jib or boom of the crane. They provide additional mechanical advantage and allow for easier lifting of heavy loads.
3. Trolley Pulleys: These pulleys are used in conjunction with a trolley system that allows the crane to move horizontally along the jib or boom. The trolley pulleys help distribute the load evenly and provide smooth movement of the crane.
4. Counterweight Pulleys: Tower cranes often use a counterweight system to balance the load being lifted. Counterweight pulleys are used to attach the counterweights to the crane and ensure proper balance and stability.
It's important to note that the specific configuration and number of pulleys used in a Tower Crane can vary depending on the crane model and lifting capacity.
Wire Rope Pulley,Steel Pulley,Tower Crane Nylon Pulley,Tower Crane Pulley,Cable Pulley
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